These are Check Engine light symbols, some of the oldest and easily the most common and recognizable of the symbols that you may see. The word “Check” may appear inside the image of the sideways engine, or below, or not at all.
The possible reasons for it coming on number in the hundreds and only your dealer or authorized service center can properly address them. However, remember that a loose or missing gas cap will cause the light to come on. This is the only solution available to the average driver, so do check that it is installed and properly tightened (make sure it clicks at least once).
In older vehicles, this text version, the Service Engine Soon Indicator, indicates a fault in an emissions related electronic system. The Picture Symbol with the lightning bolt in it means the same thing. Your dealer will be needed to properly assess the problem. Some version of the Check Engine Light is now universal and covers these and other engine-related faults.
If other symbols are also active, note that the Check Engine is your first concern. In some cases, other systems in the car may be shut down until the reason the Check Engine light is active is addressed, and the symbols associated with those symbols may be activated. Be sure to check the Multiple Symbols page for more information.
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